Extrusion for LED based lighting apparatus



FIG. 1 is a bottom perspective view of an extrusion for LED based lighting apparatus, showing the new design;

FIG. 2 is a top perspective view thereof;

FIG. 3 is a front view thereof;

FIG. 4 is a top view thereof;

FIG. 5 is a rear view thereof; and,

FIG. 6 is a side view thereof.

The uniformly dashed lines shown in the drawings illustrate portions of the extrusion for LED based lighting apparatus which form no part of the claimed design. 

CLAIM The ornamental design for an extrusion for LED based lighting apparatus, as shown and described. 